About: http://webisa.webdatacommons.org/61615573

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Thus, it was very difficult and costly to develop a high-speed communications channel between a plurality of computers, particularly if the computers were produced by different manufacturers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es